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ID

VAR-202101-1926


CVE

CVE-2021-3156


TITLE

Debian Security Advisory 4839-1

Trust: 0.1

sources: PACKETSTORM: 168983

DESCRIPTION

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character. Any local user (sudoers and non-sudoers) can exploit this flaw for root privilege escalation. For the stable distribution (buster), this problem has been fixed in version 1.8.27-1+deb10u3. We recommend that you upgrade your sudo packages. For the detailed security status of sudo please refer to its security tracker page at: https://security-tracker.debian.org/tracker/sudo Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmAQWctfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0Qr2w/5AfAZMSbKestTzvm22w+T5yReGOd2jYXO2SzdqdkIzOVXJ83RrbogkiyK d1ie47Csw51M8L5eT/kf48vkABPqT9S0dlRI7rQ2xbIDWIUcDpnFNCSclSGjI+Sd HqtaQQbR+MdSjGtC8vc8RVEOEQcVvoXrqDPaEniWjA4uTV7Iqj0P3EpH1XolVlZv lw4ZZ+VdDolxhm1QWp/NiMKUlDpv5RLs6jW0oQAKP1RZqMIX44TSEHil/NEs6VeN u5AFUwo5iwYRCUbgi2mB0GxV4CRyb0IN26pGsltYJsReFL1vCMiO9drGMk/WhlqB NGKeF5rLsMKaJCkBEcMntDG1XtFhXuyak2O4atL7H8CwhBZ81Axe+aAynn7IB99B qx3GLfRNSVKHQHBHWEOxqILCS+xWmvL6/uB6xMaAh5CXxhEgs9BIEiPonccmkzQ9 xj6Uw/aWv9ZOUu+Rwmp+bG/V8DKaFKegaQAy0HnhOZ11ruJJB/YicTXSsbxoLSEt hbd0bYAOrZBqcysH8Ed+R2tGxtjoWIDLcv3uUqmttxgd8E5YpGGngaYBleGCnB0s X3JDyd1pvBu7H0vR5k2bVNgm4qQ27jHmeNKRSpvUZv50mRX8NQyv/rrROwkUsVdI 1EnlHYz0E4BUfb15ECWLfN9BM/MyPhkdKadIrrd+zJEwq+KVcHo= =d9gQ -----END PGP SIGNATURE----- . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202101-33 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: sudo: Multiple vulnerabilities Date: January 26, 2021 Bugs: #764986, #767364 ID: 202101-33 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Multiple vulnerabilities have been found in sudo, the worst of which could result in privilege escalation. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/sudo < 1.9.5_p2 >= 1.9.5_p2 Description ========== Multiple vulnerabilities have been discovered in sudo. Please review the CVE identifiers referenced below for details. Impact ===== Local users are able to gain unauthorized privileges on the system or determine the existence of files. Workaround ========= There is no known workaround at this time. Resolution ========= All sudo users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.9.5_p2" References ========= [ 1 ] CVE-2021-23239 https://nvd.nist.gov/vuln/detail/CVE-2021-23239 [ 2 ] CVE-2021-23240 https://nvd.nist.gov/vuln/detail/CVE-2021-23240 [ 3 ] CVE-2021-3156 https://nvd.nist.gov/vuln/detail/CVE-2021-3156 [ 4 ] Upstream advisory (CVE-2020-23240) https://www.sudo.ws/alerts/sudoedit_selinux.html [ 5 ] Upstream advisory (CVE-2021-3156) https://www.sudo.ws/alerts/unescape_overflow.html Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202101-33 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: sudo security update Advisory ID: RHSA-2021:0221-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0221 Issue date: 2021-01-26 CVE Names: CVE-2021-3156 ==================================================================== 1. Summary: An update for sudo is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Security Fix(es): * sudo: Heap buffer overflow in argument parsing (CVE-2021-3156) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1917684 - CVE-2021-3156 sudo: Heap buffer overflow in argument parsing 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: sudo-1.8.23-10.el7_9.1.src.rpm x86_64: sudo-1.8.23-10.el7_9.1.x86_64.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: sudo-debuginfo-1.8.23-10.el7_9.1.i686.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm sudo-devel-1.8.23-10.el7_9.1.i686.rpm sudo-devel-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: sudo-1.8.23-10.el7_9.1.src.rpm x86_64: sudo-1.8.23-10.el7_9.1.x86_64.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: sudo-debuginfo-1.8.23-10.el7_9.1.i686.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm sudo-devel-1.8.23-10.el7_9.1.i686.rpm sudo-devel-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: sudo-1.8.23-10.el7_9.1.src.rpm ppc64: sudo-1.8.23-10.el7_9.1.ppc64.rpm sudo-debuginfo-1.8.23-10.el7_9.1.ppc64.rpm ppc64le: sudo-1.8.23-10.el7_9.1.ppc64le.rpm sudo-debuginfo-1.8.23-10.el7_9.1.ppc64le.rpm s390x: sudo-1.8.23-10.el7_9.1.s390x.rpm sudo-debuginfo-1.8.23-10.el7_9.1.s390x.rpm x86_64: sudo-1.8.23-10.el7_9.1.x86_64.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: sudo-debuginfo-1.8.23-10.el7_9.1.ppc.rpm sudo-debuginfo-1.8.23-10.el7_9.1.ppc64.rpm sudo-devel-1.8.23-10.el7_9.1.ppc.rpm sudo-devel-1.8.23-10.el7_9.1.ppc64.rpm ppc64le: sudo-debuginfo-1.8.23-10.el7_9.1.ppc64le.rpm sudo-devel-1.8.23-10.el7_9.1.ppc64le.rpm s390x: sudo-debuginfo-1.8.23-10.el7_9.1.s390.rpm sudo-debuginfo-1.8.23-10.el7_9.1.s390x.rpm sudo-devel-1.8.23-10.el7_9.1.s390.rpm sudo-devel-1.8.23-10.el7_9.1.s390x.rpm x86_64: sudo-debuginfo-1.8.23-10.el7_9.1.i686.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm sudo-devel-1.8.23-10.el7_9.1.i686.rpm sudo-devel-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: sudo-1.8.23-10.el7_9.1.src.rpm x86_64: sudo-1.8.23-10.el7_9.1.x86_64.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: sudo-debuginfo-1.8.23-10.el7_9.1.i686.rpm sudo-debuginfo-1.8.23-10.el7_9.1.x86_64.rpm sudo-devel-1.8.23-10.el7_9.1.i686.rpm sudo-devel-1.8.23-10.el7_9.1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-3156 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-002 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYBB9QtzjgjWX9erEAQjMkQ/+PUDUX16Tnzqt7l1CsDAkHsT89EyY1keR 5XAlnrEv0nfw+/Feb2zhjlAlGbZSE1pTHOB4WarZzz2edZW5PRDw2SnljPToGoF2 6e4rlxRMJzFzc1WiOl5VgIq2LsOrqE1x3smwx7UGloMNmld/wgNKzFyddlR3ya0/ k78GAgUD2K/riILpeSG9M3jkK6IX/ecAOV8cK4GnmVAyrc/I0ud+wp+AFaQdKOUd DJ08C4ktxCEDZnCMV7X0fheoVB08T2VUPqM3AT0mP8Q07RWElFNAYYzS0/0ABGdd G/bRXDOiP0Qp92gMjWi4zu8JJk1Yyt8vnXII30gr2dd4f/8O0X6N+fntkhpc86N0 mdXrPNBDXC6YJqahqtTH3ZMNWj37kSX5O0QIxRMMySIuPEhLdkF0A4CBGcP1qpaN BQf/nNAvYlkz70QTL91JkUL98X0Ih+O6IAPxT//C90VXwXTb2+XmBBYjA24/gHJn kpv9ZzJfeCSCVoa019u3r/8pkMIfiN69GpO2FQTJCP4MbIJPHeANp2lYEA+KHPqE XJvy0qh3YEs741KxKwzbaMgOTrYsoMvKhVeJZm0t5bpU5Y5TTF9fCVan8uJ8ke6d buQej1iyBUvPq+gMQvJhwiP1Q2rvgxPmHP+L3Awo9tTqm6b7WsqdRq5K+B025v+d NdZXKIPEQVY=7/vM -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . These packages include redhat-release-virtualization-host. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Bug Fix(es): * When performing an upgrade of the Red Hat Virtualization Host using the command `yum update`, the yum repository for RHV 4.3 EUS is unreachable As a workaround, run the following command: `# yum update --releasever=7Server` (BZ#1899378) 4. Bugs fixed (https://bugzilla.redhat.com/): 1889686 - CVE-2020-25684 dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker 1889688 - CVE-2020-25685 dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker 1890125 - CVE-2020-25686 dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker 1899378 - rhel-7-server-rhvh-4.3-eus-rpms repo is unavailable 1916111 - Rebase RHV-H 4.3 EUS on RHEL 7.9.z #3 1917684 - CVE-2021-3156 sudo: Heap buffer overflow in argument parsing 6. 8.2) - aarch64, ppc64le, s390x, x86_64 3. ========================================================================== Ubuntu Security Notice USN-4705-1 January 26, 2021 sudo vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in Sudo. A local attacker could possibly use this issue to obtain unintended access to the administrator account. (CVE-2021-3156) It was discovered that the Sudo sudoedit utility incorrectly handled checking directory permissions. A local attacker could possibly use this issue to bypass file permissions and determine if a directory exists or not. (CVE-2021-23239) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: sudo 1.9.1-1ubuntu1.1 sudo-ldap 1.9.1-1ubuntu1.1 Ubuntu 20.04 LTS: sudo 1.8.31-1ubuntu1.2 sudo-ldap 1.8.31-1ubuntu1.2 Ubuntu 18.04 LTS: sudo 1.8.21p2-3ubuntu1.4 sudo-ldap 1.8.21p2-3ubuntu1.4 Ubuntu 16.04 LTS: sudo 1.8.16-0ubuntu1.10 sudo-ldap 1.8.16-0ubuntu1.10 In general, a standard system update will make all the necessary changes. 7) - aarch64, ppc64le, s390x 3

Trust: 1.8

sources: NVD: CVE-2021-3156 // VULHUB: VHN-383931 // VULMON: CVE-2021-3156 // PACKETSTORM: 168983 // PACKETSTORM: 161152 // PACKETSTORM: 161143 // PACKETSTORM: 161272 // PACKETSTORM: 161140 // PACKETSTORM: 161135 // PACKETSTORM: 161136 // PACKETSTORM: 161145

AFFECTED PRODUCTS

vendor:oraclemodel:micros es400scope:gteversion:400

Trust: 1.0

vendor:mcafeemodel:web gatewayscope:eqversion:9.2.8

Trust: 1.0

vendor:fedoraprojectmodel:fedorascope:eqversion:33

Trust: 1.0

vendor:netappmodel:hci management nodescope:eqversion: -

Trust: 1.0

vendor:oraclemodel:micros es400scope:lteversion:410

Trust: 1.0

vendor:oraclemodel:tekelec platform distributionscope:gteversion:7.4.0

Trust: 1.0

vendor:oraclemodel:communications performance intelligence centerscope:gteversion:10.3.0.0.0

Trust: 1.0

vendor:synologymodel:diskstation manager unified controllerscope:eqversion:3.0

Trust: 1.0

vendor:netappmodel:ontap select deploy administration utilityscope:eqversion: -

Trust: 1.0

vendor:oraclemodel:micros kitchen display systemscope:eqversion:210

Trust: 1.0

vendor:sudomodel:sudoscope:eqversion:1.9.5

Trust: 1.0

vendor:oraclemodel:communications performance intelligence centerscope:gteversion:10.4.0.1.0

Trust: 1.0

vendor:sudomodel:sudoscope:ltversion:1.9.5

Trust: 1.0

vendor:oraclemodel:micros workstation 6scope:gteversion:610

Trust: 1.0

vendor:oraclemodel:tekelec platform distributionscope:lteversion:7.7.1

Trust: 1.0

vendor:synologymodel:diskstation managerscope:eqversion:6.2

Trust: 1.0

vendor:sudomodel:sudoscope:ltversion:1.8.32

Trust: 1.0

vendor:synologymodel:skynasscope:eqversion: -

Trust: 1.0

vendor:sudomodel:sudoscope:gteversion:1.8.2

Trust: 1.0

vendor:oraclemodel:micros workstation 6scope:lteversion:655

Trust: 1.0

vendor:debianmodel:linuxscope:eqversion:9.0

Trust: 1.0

vendor:netappmodel:ontap toolsscope:eqversion:9

Trust: 1.0

vendor:oraclemodel:communications performance intelligence centerscope:lteversion:10.4.0.3.1

Trust: 1.0

vendor:mcafeemodel:web gatewayscope:eqversion:8.2.17

Trust: 1.0

vendor:sudomodel:sudoscope:gteversion:1.9.0

Trust: 1.0

vendor:beyondtrustmodel:privilege management for unix\/linuxscope:ltversion:10.3.2-10

Trust: 1.0

vendor:oraclemodel:communications performance intelligence centerscope:lteversion:10.3.0.2.1

Trust: 1.0

vendor:debianmodel:linuxscope:eqversion:10.0

Trust: 1.0

vendor:netappmodel:oncommand unified manager core packagescope:eqversion: -

Trust: 1.0

vendor:fedoraprojectmodel:fedorascope:eqversion:32

Trust: 1.0

vendor:synologymodel:vs960hdscope:eqversion: -

Trust: 1.0

vendor:beyondtrustmodel:privilege management for macscope:ltversion:21.1.1

Trust: 1.0

vendor:oraclemodel:micros workstation 5ascope:eqversion:5a

Trust: 1.0

vendor:netappmodel:solidfirescope:eqversion: -

Trust: 1.0

vendor:netappmodel:active iq unified managerscope:eqversion: -

Trust: 1.0

vendor:mcafeemodel:web gatewayscope:eqversion:10.0.4

Trust: 1.0

vendor:netappmodel:cloud backupscope:eqversion: -

Trust: 1.0

vendor:oraclemodel:micros compact workstation 3scope:eqversion:310

Trust: 1.0

sources: NVD: CVE-2021-3156

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-3156
value: HIGH

Trust: 1.0

134c704f-9b21-4f2e-91b3-4a467353bcc0: CVE-2021-3156
value: HIGH

Trust: 1.0

VULHUB: VHN-383931
value: HIGH

Trust: 0.1

VULMON: CVE-2021-3156
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2021-3156
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

VULHUB: VHN-383931
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-3156
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.1

Trust: 2.0

sources: VULHUB: VHN-383931 // VULMON: CVE-2021-3156 // NVD: CVE-2021-3156 // NVD: CVE-2021-3156

PROBLEMTYPE DATA

problemtype:CWE-193

Trust: 1.1

sources: VULHUB: VHN-383931 // NVD: CVE-2021-3156

THREAT TYPE

local

Trust: 0.2

sources: PACKETSTORM: 168983 // PACKETSTORM: 161135

TYPE

overflow, root

Trust: 0.5

sources: PACKETSTORM: 168983 // PACKETSTORM: 161143 // PACKETSTORM: 161140 // PACKETSTORM: 161136 // PACKETSTORM: 161145

EXPLOIT AVAILABILITY

sources:
            
            
            VULHUB: VHN-383931

PATCH
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210227 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210221 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210225 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210224 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210222 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210226 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210218 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210223 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210219 - Security Advisory
Trust: 0.1
title:Red Hat: Important: sudo security updateurl:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210220 - Security Advisory
Trust: 0.1
title:Debian Security Advisories: DSA-4839-1 sudo -- security updateurl:https://vulmon.com/vendoradvisory?qidtp=debian_security_advisories&qid=e39766a043b3a0185adba1c80532d955
Trust: 0.1
title:Red Hat: Important: RHV-H security, bug fix, enhancement update (redhat-virtualization-host) 4.3.13url:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210395 - Security Advisory
Trust: 0.1
title:Red Hat: Important: Red Hat Virtualization Host security bug fix and enhancement update [ovirt-4.4.4]url:https://vulmon.com/vendoradvisory?qidtp=red_hat_security_advisories&qid=RHSA-20210401 - Security Advisory
Trust: 0.1
title:Amazon Linux AMI: ALAS-2021-1478url:https://vulmon.com/vendoradvisory?qidtp=amazon_linux_ami&qid=ALAS-2021-1478
Trust: 0.1
title:Amazon Linux 2: ALAS2-2021-1590url:https://vulmon.com/vendoradvisory?qidtp=amazon_linux2&qid=ALAS2-2021-1590
Trust: 0.1
title:Cisco: Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021url:https://vulmon.com/vendoradvisory?qidtp=cisco_security_advisories_and_alerts_ciscoproducts&qid=cisco-sa-sudo-privesc-jan2021-qnYQfcM
Trust: 0.1
title:TA-Samediturl:https://github.com/stressboi/TA-Samedit 
Trust: 0.1
title:ScannerCVE-2021-3156url:https://github.com/SantiagoSerrao/ScannerCVE-2021-3156 
Trust: 0.1
title:Título del Proyectourl:https://github.com/lmol/CVE-2021-3156 
Trust: 0.1
title:CVE-2021-3156url:https://github.com/reverse-ex/CVE-2021-3156 
Trust: 0.1
title:LinuxDocLinksurl:https://github.com/neolin-ms/LinuxDocLinks 
Trust: 0.1
title:Baron-Samediturl:https://github.com/AbdullahRizwan101/Baron-Samedit 
Trust: 0.1
title:CVE-2021-3156url:https://github.com/ph4ntonn/CVE-2021-3156 
Trust: 0.1
sources:
            
            
            VULMON: CVE-2021-3156

EXTERNAL IDS
db:NVDid:CVE-2021-3156
Trust: 2.0
db:PACKETSTORMid:161230
Trust: 1.1
db:PACKETSTORMid:161160
Trust: 1.1
db:PACKETSTORMid:161270
Trust: 1.1
db:PACKETSTORMid:161293
Trust: 1.1
db:MCAFEEid:SB10348
Trust: 1.1
db:OPENWALLid:OSS-SECURITY/2021/01/27/2
Trust: 1.1
db:OPENWALLid:OSS-SECURITY/2021/01/26/3
Trust: 1.1
db:OPENWALLid:OSS-SECURITY/2021/02/15/1
Trust: 1.1
db:OPENWALLid:OSS-SECURITY/2021/01/27/1
Trust: 1.1
db:OPENWALLid:OSS-SECURITY/2021/09/14/2
Trust: 1.1
db:CERT/CCid:VU#794544
Trust: 1.1
db:OPENWALLid:OSS-SECURITY/2024/01/30/6
Trust: 1.0
db:OPENWALLid:OSS-SECURITY/2024/01/30/8
Trust: 1.0
db:PACKETSTORMid:176932
Trust: 1.0
db:PACKETSTORMid:161143
Trust: 0.2
db:PACKETSTORMid:161152
Trust: 0.2
db:PACKETSTORMid:161140
Trust: 0.2
db:PACKETSTORMid:161272
Trust: 0.2
db:PACKETSTORMid:161136
Trust: 0.2
db:PACKETSTORMid:161135
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db:PACKETSTORMid:161145
Trust: 0.2
db:PACKETSTORMid:161163
Trust: 0.1
db:PACKETSTORMid:161141
Trust: 0.1
db:PACKETSTORMid:161138
Trust: 0.1
db:PACKETSTORMid:161144
Trust: 0.1
db:PACKETSTORMid:161142
Trust: 0.1
db:PACKETSTORMid:161139
Trust: 0.1
db:PACKETSTORMid:161398
Trust: 0.1
db:PACKETSTORMid:161281
Trust: 0.1
db:PACKETSTORMid:161137
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db:SEEBUGid:SSVID-99117
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db:VULHUBid:VHN-383931
Trust: 0.1
db:VULMONid:CVE-2021-3156
Trust: 0.1
db:PACKETSTORMid:168983
Trust: 0.1
sources:
            
            
            VULHUB: VHN-383931 // 
            
            
            
            VULMON: CVE-2021-3156 // 
            
            
            
            PACKETSTORM: 168983 // 
            
            
            
            PACKETSTORM: 161152 // 
            
            
            
            PACKETSTORM: 161143 // 
            
            
            
            PACKETSTORM: 161272 // 
            
            
            
            PACKETSTORM: 161140 // 
            
            
            
            PACKETSTORM: 161135 // 
            
            
            
            PACKETSTORM: 161136 // 
            
            
            
            PACKETSTORM: 161145 // 
            
            
            
            NVD: CVE-2021-3156

REFERENCES
url:http://www.openwall.com/lists/oss-security/2021/01/26/3
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url:https://security.gentoo.org/glsa/202101-33
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url:https://www.kb.cert.org/vuls/id/794544
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url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-sudo-privesc-jan2021-qnyqfcm
Trust: 1.1
url:https://security.netapp.com/advisory/ntap-20210128-0001/
Trust: 1.1
url:https://security.netapp.com/advisory/ntap-20210128-0002/
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url:https://support.apple.com/kb/ht212177
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url:https://www.sudo.ws/stable.html#1.9.5p2
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url:https://www.synology.com/security/advisory/synology_sa_21_02
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url:https://www.debian.org/security/2021/dsa-4839
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url:http://seclists.org/fulldisclosure/2021/jan/79
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url:http://seclists.org/fulldisclosure/2021/feb/42
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url:http://packetstormsecurity.com/files/161160/sudo-heap-based-buffer-overflow.html
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url:http://packetstormsecurity.com/files/161230/sudo-buffer-overflow-privilege-escalation.html
Trust: 1.1
url:http://packetstormsecurity.com/files/161270/sudo-1.9.5p1-buffer-overflow-privilege-escalation.html
Trust: 1.1
url:http://packetstormsecurity.com/files/161293/sudo-1.8.31p2-1.9.5p1-buffer-overflow.html
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url:https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability
Trust: 1.1
url:https://www.oracle.com//security-alerts/cpujul2021.html
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url:https://www.oracle.com/security-alerts/cpuapr2022.html
Trust: 1.1
url:https://www.oracle.com/security-alerts/cpuoct2021.html
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url:https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html
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url:http://www.openwall.com/lists/oss-security/2021/01/27/1
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url:http://www.openwall.com/lists/oss-security/2021/01/27/2
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url:http://www.openwall.com/lists/oss-security/2021/02/15/1
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url:http://www.openwall.com/lists/oss-security/2021/09/14/2
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url:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/lhxk6ico5aylgfk2tax5mzkuxtukwojy/
Trust: 1.0
url:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/cala5ftxiqbrryua2zqnjxb6oqmaxeii/
Trust: 1.0
url:https://kc.mcafee.com/corporate/index?page=content&id=sb10348
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url:http://packetstormsecurity.com/files/176932/glibc-syslog-heap-based-buffer-overflow.html
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url:http://www.openwall.com/lists/oss-security/2024/01/30/8
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url:http://www.openwall.com/lists/oss-security/2024/01/30/6
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url:http://seclists.org/fulldisclosure/2024/feb/3
Trust: 1.0
url:https://www.vicarius.io/vsociety/posts/sudoedit-pwned-cve-2021-3156
Trust: 1.0
url:https://nvd.nist.gov/vuln/detail/cve-2021-3156
Trust: 0.8
url:https://www.redhat.com/mailman/listinfo/rhsa-announce
Trust: 0.5
url:https://access.redhat.com/security/vulnerabilities/rhsb-2021-002
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url:https://access.redhat.com/security/cve/cve-2021-3156
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url:https://bugzilla.redhat.com/):
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url:https://access.redhat.com/security/team/key/
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url:https://access.redhat.com/security/team/contact/
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url:https://access.redhat.com/security/updates/classification/#important
Trust: 0.5
url:https://access.redhat.com/articles/11258
Trust: 0.4
url:https://nvd.nist.gov/vuln/detail/cve-2021-23239
Trust: 0.2
url:https://kc.mcafee.com/corporate/index?page=content&amp;id=sb10348
Trust: 0.1
url:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/lhxk6ico5aylgfk2tax5mzkuxtukwojy/
Trust: 0.1
url:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/cala5ftxiqbrryua2zqnjxb6oqmaxeii/
Trust: 0.1
url:https://www.debian.org/security/
Trust: 0.1
url:https://www.debian.org/security/faq
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url:https://security-tracker.debian.org/tracker/sudo
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url:https://www.sudo.ws/alerts/sudoedit_selinux.html
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url:https://nvd.nist.gov/vuln/detail/cve-2021-23240
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url:https://www.sudo.ws/alerts/unescape_overflow.html
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url:https://creativecommons.org/licenses/by-sa/2.5
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url:https://security.gentoo.org/
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url:https://bugs.gentoo.org.
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url:https://access.redhat.com/errata/rhsa-2021:0221
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url:https://access.redhat.com/articles/2974891
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url:https://nvd.nist.gov/vuln/detail/cve-2020-25686
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url:https://access.redhat.com/security/cve/cve-2020-25685
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url:https://nvd.nist.gov/vuln/detail/cve-2020-25684
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2020-25685
Trust: 0.1
url:https://access.redhat.com/security/vulnerabilities/rhsb-2021-001
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url:https://access.redhat.com/security/cve/cve-2020-25686
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url:https://access.redhat.com/security/cve/cve-2020-25684
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url:https://access.redhat.com/errata/rhsa-2021:0395
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url:https://access.redhat.com/errata/rhsa-2021:0219
Trust: 0.1
url:https://launchpad.net/ubuntu/+source/sudo/1.8.31-1ubuntu1.2
Trust: 0.1
url:https://usn.ubuntu.com/4705-1
Trust: 0.1
url:https://launchpad.net/ubuntu/+source/sudo/1.9.1-1ubuntu1.1
Trust: 0.1
url:https://launchpad.net/ubuntu/+source/sudo/1.8.16-0ubuntu1.10
Trust: 0.1
url:https://launchpad.net/ubuntu/+source/sudo/1.8.21p2-3ubuntu1.4
Trust: 0.1
url:https://access.redhat.com/errata/rhsa-2021:0226
Trust: 0.1
url:https://access.redhat.com/errata/rhsa-2021:0223
Trust: 0.1
sources:
            
            
            VULHUB: VHN-383931 // 
            
            
            
            PACKETSTORM: 168983 // 
            
            
            
            PACKETSTORM: 161152 // 
            
            
            
            PACKETSTORM: 161143 // 
            
            
            
            PACKETSTORM: 161272 // 
            
            
            
            PACKETSTORM: 161140 // 
            
            
            
            PACKETSTORM: 161135 // 
            
            
            
            PACKETSTORM: 161136 // 
            
            
            
            PACKETSTORM: 161145 // 
            
            
            
            NVD: CVE-2021-3156

CREDITS
Red Hat
Trust: 0.5
sources:
            
            
            PACKETSTORM: 161143 // 
            
            
            
            PACKETSTORM: 161272 // 
            
            
            
            PACKETSTORM: 161140 // 
            
            
            
            PACKETSTORM: 161136 // 
            
            
            
            PACKETSTORM: 161145

SOURCES
db:VULHUBid:VHN-383931
db:VULMONid:CVE-2021-3156
db:PACKETSTORMid:168983
db:PACKETSTORMid:161152
db:PACKETSTORMid:161143
db:PACKETSTORMid:161272
db:PACKETSTORMid:161140
db:PACKETSTORMid:161135
db:PACKETSTORMid:161136
db:PACKETSTORMid:161145
db:NVDid:CVE-2021-3156

LAST UPDATE DATE
2025-08-15T05:03:00.975000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-383931date:2022-09-03T00:00:00
db:VULMONid:CVE-2021-3156date:2024-02-04T00:00:00
db:NVDid:CVE-2021-3156date:2025-04-03T19:47:48.433

SOURCES RELEASE DATE
db:VULHUBid:VHN-383931date:2021-01-26T00:00:00
db:VULMONid:CVE-2021-3156date:2021-01-26T00:00:00
db:PACKETSTORMid:168983date:2021-01-28T20:12:00
db:PACKETSTORMid:161152date:2021-01-27T14:13:14
db:PACKETSTORMid:161143date:2021-01-27T14:06:46
db:PACKETSTORMid:161272date:2021-02-03T16:22:29
db:PACKETSTORMid:161140date:2021-01-27T14:06:20
db:PACKETSTORMid:161135date:2021-01-27T14:05:32
db:PACKETSTORMid:161136date:2021-01-27T14:05:42
db:PACKETSTORMid:161145date:2021-01-27T14:07:05
db:NVDid:CVE-2021-3156date:2021-01-26T21:15:12.987